Pneumatic tire.



H. B. GILLETTE.

' PNEUMATIC TIRE.

APPLICATION FILED DEC-6. 1913.

Patented June 1,

. soft rubber protector in place.

s'rnrns FIQ.

PNEUMATIC TIRE.

Specification of Letters Ilatent. Patented J 11 1, 1915 Continuation of applications Serial No. 724,499, filed October 8, 1912, and Serial No. 760,141, filed April 10,

1913. This application filed December 6,1913. Serial No. 805,177.

the city of Grand Rapids, county of Kent, State of Michigamhave invented certain new and useful Improvements in Pneumatic Tires, of whlch the following 1s a specification.

This invention relates to improvements in pneumatic tires, and particularly to protection structures therefor. i

The objects of this invention are,

. First, to provide in a protector means for pneumatic tires, an effective means of retaining and securing asegmental jointed Second, to provide improved means of retaining the form of such soft rubber protectors when they are incorporated in a tire, Third, to provide improved construction of retaining ribs for such jointed soft rubber protectors. Fourth, to provide such a protector and. re-

taining device'which may be readily attached to tires already in use.

Further objects and objects relating to details and economies of construction and operation will definitely appear from the description to follow. 7

I accomplish the objects of my invention 7 by the devices and means described in the 7 following specification.

The invention is clearly defined endpointed out 'in the claims.

. View through a pneumatic automobile tire incorporating my invention, taken on a line corresponding to line 11 of Fig. II. :Fig. II is an enlarged detail longitudinal sectional view through a portion of a-tireincorporating my lnvention, taken on a line corresponding to line 22 {of Fig. I. Fig. III is. a detail perspective view of one of the jointed segments of my improved tire protector,rsomew hat as it is conformed and shaped when in place in a tire. Fig. IV is 50, protector segments as it is molded in the a detail plan view of one of my improved flat, a portionof the rubber being cut away ,at one side of the attaching 'grooveto show the armor fabric therein. Fig. V is an enlarged detail sectional view taken on'a line corresponding to line 5-5 of Fig. IV, showing the general formation of the protector segment in cross section. Fig. VI is an enlarged detail transverse sectional view through the central portion of one of my improved protector segments in place in a tire, with a modified means for attaching to the outer casing, showing the same as it is made use of as an attachment for tires already in use. 7

In the drawing, the sectional views are taken looking in the direction of the little arrows at the ends of the section linesand similar numerals of reference refer to similar parts throughoutthe several views.

Considering the numbered parts of the drawing, I have shown my invention incorporated in an ordinary pneumatic automobile tire. The casing 1 is of any desired form, and the inner tube 9 is of any usual or desired construction. I have not shown the parts in place on a rim, as that is unnecessary to understand my invention. My'improved protector segments 2 are interposed between the casing and the inner tube, and are thickest at their central portion, which is toward the periphery of the tire, as clearly appears in Figs. I and III.

The segments are provided with joint tongues or flaps l projecting from one edge on their inner sides, which are beveled to a thin knife edge, as appears incross section in Fig. V, this portion conforming to the inner tube 9. The opposite inner side of each segment is correspondingly beveled as at .3 to receive the joint tongue or flap 4. These segments are disposed on a continuous annular retainer 5, which is secured centrally within the shoe 1 opposite its outermost periphery. This retainer rib is preferably in cross section in the form of a segment of a circle, being preferably made from a piece of high pressure steam hose made up of fabric and rubber. A section or seg' ment of the tubeis cut lengthwise and then incorporated into the lining fabric 10 of the outer tube. 1 which continues therearound, aslseen in Fig. I.

A segmental longitudinal, notch 7 is in each protector segment 2 and embraces the rib or annular ring'within the tire casing 1. Because of the formation of'the same, the

' projecting portion 7 (see Fig. III) exactly conforms to the interior portion of the said rib 5, and the lateral sides'of'the notch 7 this gumlned tape 6f is cemented to the inside'of the shoe So'that the'soft'rubb'er segment 2' Willreniain eliectiv ejly in pos tion, I incorporate in'to 'the sanie' at' each side, of the notch?! a co arse Woi enarnior fabric .8, technically; khowin'in the tireh'rt ,..the ii1n'ertube, j

. in the for s te p qa tljijels'jan efcan; be consiclf'erabl modified in detail Without departing from my invention,

asa breaker strip which retains the rubber ing o'utatl'each siidetnd insures the proper resistance toa'ny object that may have puncturedthe outer casing and insures'a'broad resistance of the oft""rublo e'r when a pointed object comes t enter ti protector? This is turnsthepoiiit of anail orj other punchiring phi i twd Pl- Q S ts'p n t ting I j hai/ ejshovyn improved tire structure and I therefore desire'also to clairri the same broadly, as'finidicatedand pointed out in the I cl'ai1i1 as'new desire to secure; by Letters Patent'is:

rnatic tire structure, the combination of: an outer casing, an inner tube, .a ret a nlngj rib curved '1; n c'r'o'ss"section sefcuredgcentrally"to the infside of the Wall of the said outer casing, protectorsegineiitsof -soft 1"rub'b er thick; at the"center v and extended to. thinedges fat 7 each side, with central lon- .gitudinal are shaped notches-adapted to en 7 gage said rib, saidjs'egnients' being provided with beveled j ointfflaps on on-e edge attheir sides with -be eled portions :Q-Orre spending to flaps at the opposite edges,

' disposed upon said and abreaker -strip of f abric incorporated in the outer portion ofsaidsoft seg nentsati eachside of the engaging notch, coacting substantially as descrihed for the purposejspeciiied v I 2. apneumatictire structure, the coma bination of an outer casing, an'inner' tube,

- cured centrally to the inside of the ivall'of a retaining rib curved in cross section se- ;th6 said outer casing, protectorsegn ents of soitrubber thick at the centen and extended 1 :to thin edges at eac hjside,With'central lone0,

jgitudinal are shaped notches adapted to en- :sag id 'i y a de s g ent being i bi V with b'eveledjointflaps on one edge at their inner sides and' with beveled portions 001'- responding to said flaps at the opposite edges, disposed upon said rib, and fabric the outer portion of 'said softrubber 'segnientsatea'ch sideof the engaging notch, coacting substantially as del scribed for the purpose specified. Ina pneumatic tire structure, the com'-' b nation of an outer casing, an inner tube, a

retaining'rib" curred in cross section secured V centrally to the inside of the Wall of the said 7 outer casing, and protector segments of soft rubber thick I at the" center and extended thin edges at each side, with central are shaped iiotche'sadapted. to engage said rib,

"said 1 segments being provided with beveled j intfla ie o ii'dseie i i innersidesr and with beveled portions corresponding to "said na s at the opposite edges, disposed po is di f b, scTilied fof fpu'rpose specified;

' 4? In a pneumatic tire structure, the combination 01f an. outer i basing, inner tube,

v a retaining curvedin cross section .se-

curedcentrally to-Ethe inside "ofthe'i wall of omin sub l a d stitched, and protector Segments" br stre'rubie hie d fi ch ei fi e f i rib, saidsegrnents being providedwith bev+ eled joint "flaps 'on. one edge at their inner sides With" beveled portions correspondposed upon s'aid-ribfcoacting substantially ioo ing rib curved in cross sectioiu secured ceni trall'y' tq the ins de all of thefoutercasingf. 6.Infa pneumatict r'e'structure, a retain 'ing rib curyed in cross sectiomflaiid a? strip c'entiallystitchedthereto adapted to be 08;

mu d t t u er eas n d 'iei fife- Inga "pneumatic tire structure; a pro -z- "teat r'segmentbf jsoftrubbler' thickatth."

cements-extended to a. thin edge, at each side, Withcentral' longitudinal notch, and c a breakenstrip of 'fabricincorporated in the cr s en h p s 8."'Ifn 'aIp'n'eu'm V bination of an outer casing, an inner tube, a retaining rib secured to the inner Wall of outer casing, resilient protector "strips disposed flexed," oonditionf between ,said outer casing and said innertub'e, said strips tending, to spring out into thefla't 'Eposition,

' outer portion thereohsaid segment being norinallyjfia't and adapted tobe flexedinto V tic tire "structure, the coin notches in saidprotedtorfstrips, said protectoni strips being seated"on'saidfrib with j the notches ;engaging said when; the strlps are flexed, "the resiliency of the" pro tector strips lcausinglgthe notches 'togripsaid g V rib.

V 9'. Infa 'pneuinatictire structure, the com bination of an outer casing, an inner tube,

a retaining rib secured to the'inner, wall of said outer casing, resilient protector strips secured to said rib in a flexed positlon, and

tending to regain the fiat position, the resiliency of said protector strips causing them to exert outward pressure against the inner face of said outer casing.

10. In a pneumatic tire structure, the combination of an outer casing, an inner tube, resilient protector strips disposed in flexed condition between said outer casing and the inner tube, said strips being normally flat and being disposed beneath said outer casing in a flexed position having a tendency to regain the flat position, the resiliency of said protector strips exerting outward pressure against the inner face of the outer casing to retain said strips in Gopies of this patent may be obtained for shape and disposed between said outer casing and said inner tube around the periphcry of the the In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

HERBERT B. GILLETTE. n a] Witnesses:

LUELLA G. GREENFIELD, GRACE B. THOMPSON.

five cents each, by addressing the Commissioner of Patents Washington, D. 0. 

